Method for flocculating suspensions containing swelled layered c

Details Method for flocculating suspensions containing swelled layered c Method for flocculating suspensions containing swelled layered c

1987-04-30

1988-03-01

Wyse, Tom

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

423 81, 423333, 502 62, 502232, 502242, 502507, C02F 156

Patent

active

047284390

ABSTRACT:
A method is disclosed for flocculating suspensions containing (a) layered oxide materials intercalated with a hydrophobic swelling agent and (b) nonintercalated hydrophobic swelling agent. The suspension is contacted with a ketone, water, and a cationic organic polymer; the resulting mixture is maintained at a sufficiently alkaline pH to prevent removal of the intercalated swelling agent during the flocculation treatment. This method is particularly useful for preparing swelled layered chalcogenide materials for the introduction of interspathic polymeric chalcogenide precursors in order to form a thermally stable product.

REFERENCES:
patent: 4009103 (1977-02-01), Burke
patent: 4046684 (1977-09-01), Tsunoda et al.
patent: 4288422 (1981-09-01), Chianelli et al.
patent: 4414137 (1983-11-01), Young et al.
patent: 4569768 (1986-02-01), McKinley

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